Refine My Results

Creation Date 

1. Before 1960  (5,943)
2. 1960 To 1962  (10,200)
3. 1963 To 1965  (10,024)
4. 1966 To 1969  (23,814)
5. After 1969  (44,570)
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New Records 

1. New From Last 3 Month  (36)
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Subject 

1. Physics  (94,202)
2. Measuring  (48,394)
3. Testing  (48,394)
4. Controlling  (46,159)
5. Regulating  (46,159)
6. Systems For Controlling Or Regulating Non-Electric Variables  (36,984)
7. Measuring Magnetic Variables  (31,701)
8. Measuring Electric Variables  (31,701)
9. Electricity  (21,848)
10. Tariff Metering Apparatus  (13,944)
11. Arrangements For Measuring Two Or More Variables Not Coveredin A Single Other Subclass  (13,944)
12. Measuring Not Specially Adapted For A Specific Variable  (13,944)
13. Measuring Or Testing Not Otherwise Provided For  (13,944)
14. Lighting  (12,819)
15. Weapons  (12,819)
16. Blasting  (12,819)
17. Heating  (12,819)
18. Mechanical Engineering  (12,819)
19. Transporting  (9,329)
20. Performing Operations  (9,329)
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Language 

1. English  (62,905)
2. German  (19,889)
3. French  (8,774)
4. Russian  (1,663)
5. Spanish  (1,337)
6. Italian  (418)
7. Danish  (297)
8. Japanese  (289)
9. Dutch  (126)
10. Finnish  (67)
11. Swedish  (46)
12. Icelandic  (3)
13. Norwegian  (2)
14. Turkish  (2)
15. Bulgarian  (2)
16. Czech  (1)
17. Polish  (1)
18. Estonian  (1)
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